JC/T 1064-2007 水泥窑用硅莫砖/Silica brick for cement kilns
水泥窑用硅莫砖
1范围
本标准规定了水泥密用硅莫砖的术语和定义、分类和标记、技术要求、试验方法、检验规则、标志、包装、运输与贮存和质量证明书。
本标准适用于水泥窑用硅莫砖。
2规范性引用文件
下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件,其随后所有的修改单(不包括勘误的内容)或修订版均不适于本标准,然而,鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件,其最新版本适用于本标准。
GB/T 2997 致密定形耐火制品体积密度、显气孔率和真气孔率试验方法。
GB/T 5072.1致定形耐火制品 常温耐压强度试验方法无村垫仲裁试验。
GB/T 5072.2致密定形耐火制品 常温耐压强度试验方法第2部分:衬垫试验法。
GB/T 6900铝硅系耐火材料化学分析方法。
GB/T 7320.1耐火材料热膨胀试验方法 顶杆法。
GB/T 7321定形耐火制品试样制备方法。
GB/T 10325定形耐火制品抽样验收规则。
GB/T 10326定形耐火制品尺寸、外观及断面的检查方法。
GB/T 16546定形耐火制品包装、标志、运输和储存。
GB/T 18301耐火材料常温耐磨性试验方法。
YB/T 370耐火制品荷重软化温度试验方法(非示差–升温法)。
YB/T 376.1耐火制品抗热震性试验方法(水急冷法)。
3术语和定义
下列术语和定义适用于本标准。
3.1硅莫砖Guimo brick
以硅线石、莫来石、高铝矶土熟料为主要原料和/或其他辅助材料经压制成型后具有高耐磨性的烧成制品。
4分类与标记
4.1分类
按荷重软化温度指标分为GM1650、GM1600、GM1550三个牌号。
4.2标记
产品标记顺序为:产品名称、品种和标准号。示例:牌号为GM1650的硅莫砖标记为:硅莫砖GM1650JC/T1064-2007。
5技术要求
5.1产品的尺寸允许偏差与外观应符合表1的规定。
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表1产品的尺寸允许偏差及外观质量 单位为毫米 |
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项目 |
指标 |
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尺寸允许偏差 |
<110 |
±1 |
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≥110 |
±1.5 |
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楔形砖大小头尺寸差值 |
±1 |
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|
扭曲 |
≤0.5% |
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缺角 |
≤20允许20<a+b+c<50,允许二处 |
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缺棱 |
≤30允许30<e+f+g<60,允许三处 |
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裂纹
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宽度<0.1 |
允许 |
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0.1~0.25 |
裂纹长度≤40 |
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>0.25 |
不允许 |
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表面无肉眼可见气泡 |
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注1:特殊要求产品的尺寸允许偏差及外观质量可由供需双方商定。 |
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5.2产品的理化性能指标应符合表2的规定。
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表2产品的理化指标 |
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项目 |
指标 |
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GM1650 |
GM1600 |
GM1550 |
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化学成分 |
Al2O3,/% |
65 |
63 |
60 |
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物理性能 |
体积密度/(g/cm³) |
2.65 |
2.60 |
2.55 |
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显气孔率/% |
17 |
17 |
19 |
|
|
耐压强度/MPa |
85 |
90 |
90 |
|
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荷重软化温度T0.6/℃ |
1650 |
1600 |
1550 |
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热震稳定性(1100℃水冷)/次 |
10 |
10 |
12 |
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常温耐磨性/cm |
5 |
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*热膨胀率 % |
提供实测数据 |
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热膨胀率的温度可由供需双方商定。 |
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6试验方法
6.1制样按GB/T 7321的规定进行。
6.2Al2O3按GB/T 6900的规定进行。
6.3体积密度显气孔率按GB/T 2997的规定进行。
6.4耐压强度可按GB/T 5072.1,GB/T 5072.2的规定进行,其中GB/T 5072.1是仲裁检验方法。
6.5荷重软化温度按YB/T 370的规定进行。
6.6热熊稳定性按YB/T 3761的规定进行。
6.7常温耐磨性按GB/T 18301的规定进行。
6.8热膨胀率按GB/T 7320.1的规定进行。
6.9产品的尺寸偏差和外观质量按GB/T 10326的规定进行。
7.检验规则
7.1出厂检验
出厂检验项目包括第5章中除热膨胀率外的全部性能。
7.2组批与抽样
7.2.1产品按同一类别组批,每批不超过150吨。
7.2.2抽样按GB/T 10325的规定进行。
7.3判定规则
产品的判定按GB/T 10325进行。破坏性检验的样品应从外观检查合格的样本中抽取。第5章中除热膨胀率指标外所有项目为考核指标。
8包装标志、运输和贮存及质量证明书
8.1标志、包装、运输和贮存按GB/T 16546进行。
8.2砖出厂时应附有质量证明书,质量证明书应包括:供方名称、需方名称、合同号、生产日期、产品名称、标准编号、牌号、批号、尺寸、外观及理化指标等内容。
Silica brick for cement kilns
1 Range
This standard specifies the terms and definitions, classification and marking, technical requirements, test methods, inspection rules, marking, packaging, transport and storage, and quality certificates for cement-dense silica bricks.
This standard is applicable to silica brick for cement kiln.
2 Normative reference documents
The terms in the following documents become terms of this Standard by reference to this Standard. All subsequent amendments (excluding errata) or revisions to dated citations are not applicable to this Standard; however, parties to an agreement under this Standard are encouraged to explore the use of the most recent version of these documents. For undated references, the latest version of the document applies to this standard.
Test method for bulk density, apparent porosity and true porosity of GB/T 2997 compact shaped refractory products.
GB/T 5072.1 Test method for compressive strength of shaped refractory products at room temperature without mat arbitration test.
GB/T 5072.2 Compact shaped refractory products – Compression strength test method at room temperature – Part 2: gasket test method.
GB/T 6900 aluminum-silicon refractory chemical analysis method.
GB/T 7320.1 Test method for thermal expansion of refractory materials – jacking rod method.
GB/T 7321 shaped refractory product sample preparation method.
GB/T 10325 shaped refractory products sampling acceptance rules.
GB/T 10326 shaped refractory products size, appearance and section inspection method.
GB/T 16546 shaped refractory products packaging, marking, transportation and storage.
GB/T 18301 refractory wear resistance test method at room temperature.
Test method for load softening temperature of YB/T 370 refractory products (non-differential – rising temperature method).
YB/T 376.1 Test method for thermal shock resistance of refractory products (water quench method).
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1 Guimo brick
Sintered products with high wear resistance after pressing with sillimanite, mullite, aluminite clinker as the main raw material and/or other auxiliary materials.
4 Classification and labeling
4.1 Classification
According to the load softening temperature index is divided into GM1650, GM1600, GM1550 three brands.
4.2 Tags
Product marking sequence: product name, variety and standard number. Example: A Silmo brick with the grade GM1650 is labeled: Silmo Brick GM1650JC/T1064-2007.
5 Technical Requirements
5.1 The permissible size deviation and appearance of the product shall comply with the provisions of Table 1.
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Table 1. Size tolerance and appearance quality of products Unit in millimeter |
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Index |
Item |
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Allowable deviation of dimension |
<110 |
±1 |
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≥110 |
±1.5 |
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Wedge brick size head size difference |
±1 |
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Contort |
≤0.5% |
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Missing corner |
≤20 20<a+b+c<50, two places are allowed |
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Wane |
≤30 30<e+f+g<60, three values are allowed |
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Crack
|
Breadth<0.1 |
Permit |
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0.1~0.25 |
Crack length≤40 |
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>0.25 |
Not allow |
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There are no visible bubbles on the surface. |
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Note 1: The permissible size deviation and appearance quality of products with special requirements can be agreed by both parties. |
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5.2 The physical and chemical properties of the product shall comply with the provisions of Table 2
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Table 2 Physical and chemical indexes of the products |
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Index |
Item |
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GM1650 |
GM1600 |
GM1550 |
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Chemical composition |
Al2O3,/% |
65 |
63 |
60 |
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Physical property |
Bulk density/g/cm |
2.65 |
2.60 |
2.55 |
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Apparent porosity/% |
17 |
17 |
19 |
|
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Compressive strength/MPa |
85 |
90 |
90 |
|
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Softening temperature under loadT0.6/℃ |
1650 |
1600 |
1550 |
|
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Thermal shock stability (1100℃ water cooling)/ time |
10 |
10 |
12 |
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Room temperature wear resistance/cm |
5 |
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*Thermal expansion rate % |
Provide measured data |
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The temperature of the thermal expansion rate can be agreed upon by the supply and demand parties. Note 2: Technical requirements for products with special requirements may be agreed upon by both parties. |
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6 Test methods
6.1 Sample preparation shall be carried out according to GB/T 7321.
6.2Al2O3 is carried out in accordance with GB/T 6900.
6.3 Volumetric density apparent porosity shall be determined according to GB/T 2997.
6.4 The compressive strength can be carried out according to the provisions of GB/T 5072.1 and GB/T 5072.2, wherein GB/T 5072.1 is the arbitration test method.
6.5 The load softening temperature shall be carried out according to YB/T 370.
6.6 Hot bear stabilization shall be carried out according to YB/T 3761.
6.7 Wear resistance at room temperature shall be in accordance with GB/T 18301.
6.8 The thermal expansion rate shall be in accordance with GB/T 7320.1.
6.9 The size deviation and appearance quality of the product shall be carried out according to GB/T 10326.
7 Check the rules
7.1 Factory Inspection
The factory inspection items include all the properties in Chapter 5 except the thermal expansion rate.
7.2 Batch and sampling
7.2.1 The products shall be batch in the same category, each batch shall not exceed 150 tons.
7.2.2 Sampling shall be conducted in accordance with GB/T 10325.
7.3 Decision Rules
Products are judged according to GB/T 10325. Samples for destructive testing shall be drawn from samples that pass the inspection. In Chapter 5, all items except the index of thermal expansion rate are assessment indicators.
8 Packing mark, transport and storage and quality certificate
8.1 Marking, packing, transportation and storage shall be carried out in accordance with GB/T 16546.
8.2 The quality certificate shall be attached to the brick before delivery, which shall include: supplier name, demander name, contract number, production date, product name, standard number, brand number, batch number, size, appearance and physical and chemical index.
